Question

formulas for compound interest with some examples.. formula for half yearly compund interest,annually,2yearly and a question if the money is given and c.i. also then it is asked to tell that in how much time the money will become some amount explain fully..

Answer 1

Hey dear,
It's your answer ◆●◆●◆●

 

P = principal amount (the initial amount you borrow or deposit)

r  = annual rate of interest (as a decimal)

t  = number of years the amount is deposited or borrowed for.

A = amount of money accumulated after n years, including interest.

n  =  number of times the interest is compounded per year 

 

 

Example:

An amount of $1,500.00 is deposited in a bank paying an annual interest rate of 4.3%, compounded quarterly. What is the balance after 6 years?

Solution:

Using the compound interest formula, we have that
P = 1500, r = 4.3/100 = 0.043, n = 4, t = 6. Therefore,



So, the balance after 6 years is approximately $1,938.84.




thanks ;)

Answer 2

formula for compound interest:- amount - principal.

example:- find the compound interest if the principal is rs 200 and the rate of interest per annum is 5 percent and with time period of 2 yrs..

solution:- given value:-principal-rs200
rate of interest:- 5 percent
time (n)- 2 yrs..
so to find CI first we wonna find amount..
formula to find amount if compounded annually- p(1+r/100) whole power n

so- amount =200(1+5/100) whole power 2.. if u further simplify u get the amount ..

so CI=amount - principal..if u substitute this formula u get the CI..

formula for finding amount half yearly if principal, rate of interest, and time are given:-p(1+r/200) whole power 2n..